People attend a rally demanding justice for Trayvon Martin in Freedom Plaza, Saturday, March 24, 2012, in Washington. Martin, an unarmed young black teen was fatally shot by a volunteer neighborhood watchman.

The 2012 campaign is being chaired by Jody Epstein and her three children: Amy Schneider and Zach and Jason Epstein. Their husband and father, David Epstein, lost his battle with acute myeloid leukemia 13 years ago. “We know that David would be behind our effort to help other families … navigating the cancer journey,” Jody Epstein says. “Our intention is to truly make a difference.”